The growth of switching has(135)a new generation of network management tools that help(136)cope with the challenges,(137)them to

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问题 The growth of switching has(135)a new generation of network management tools that help(136)cope with the challenges,(137)them to correlate device alarms in order to(138)pinpoint root causes, or to monitor service levels without depending on IP subnet schemes. These new tools have become essential to coping with the primary(139)effect of any treatment that significantly increases network flexibility: added complexity.

选项 A、technicians
B、workers
C、salesmen
D、professors

答案A

解析
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